Power adaptor



FIG. 1 is a perspective view of a power adaptor showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a power adaptor, as shown and described. 